45 × 13 = 585
Which is exactly how much he'd need to pay back his sister and buy the bike. So, it would take him 13 weeks.
165.63-$18.99= $146.64
$146.64 / .78€ per mi= 188miles
188 miles is your answer
18900cm = 189m
189 / 1.8 = 105m.
The blackboard's length in meters is 105m.
The answer is 10 as you simply plug in x in the f(x) problem so 3*2(.5)+1=10